-ickly-pears {Opuntia Dil- 



in making a drainage ditch. 



artificial shell heap, built up by the former inhabitants with 

 their discarded oyster, clam, and conch shells. The bones we 



state of preservation. The skulls were particularly interesting. 



arly < 



aught , 



Now t 



, perhaps wholly, on fish and "shell-fish"; but from 



Their diet did evidently develop their heads, however. The 

 skull-bones of the specimens we observed varied from one-half 

 an inch to nearly three-quarters of an inch in thickness. 





; to a height of 







